Nail beasts are encountered on all three paths of the Temple Trekkingminigame. The combat levels of Nail beasts are based on the difficulty of the event chosen: they are level 69 on easy, level 98 on medium, and level 141 on hard. The number of Nail beasts that players encounter depends on the difficulty of the path being taken and can range from anywhere between two level 60 beasts (easy) and six level 140 beasts (hard). On an easy event, players will see between two and three Nail beasts, on a medium event they will see between three and four, and on a hard event anywhere between four and six will appear.

They are not very strong, but they hit 3 times every attack (3 times in 7 ticks) and are very accurate, even against high-defence armour. Players should keep an eye on their follower's hitpoints and on their own.